Table 2.
Subjective and objective outcome parameters: mean values at follow-up (with ranges in parentheses) for the anterior lumbar interbody fusion with Hartshill horseshoe (ALIF) and the posterior lumbar interbody fusion (PLIF) groups. There were no significant differences between the two groups on any of the parameters (P<0.05) (MSPQ Modified Somatic Perception Questionnaire, ZDS Zung Depression Scale)
| Parameter | ALIF | PLIF |
|---|---|---|
| Walking distance | 1305 yds (1193 m) | 1228.6 yds (1123 m) |
| Oswestry Disability Index | 32.9 (0–82) | 30.5 (0–86) |
| Subjective score | 23.7 (8–50) | 23 (10–48) |
| Distress (MSPQ+ZDS)* | 28.5 (4–99) | 25.1 (0–81) |
| Visual analogue scale | 4.2 (0–10) | 4 (0–10) |
| Pain drawing | 5.2 (0–36) | 5.1 (0–19) |